underground blasting

基本解釋

Widely used in outdoor blasting and underground blasting projects with combustible gas and mineral dust explosion risk.
廣泛適用於露天及可燃氣和（或）鑛塵爆炸危險的地下爆破工程。
The underground blasting supplies magazine is one of the important facilities, to ensure the safety production of underground mine.
井下爆炸材料庫是鑛井安全生産的重要保障設(shè)施之一。
The excavation technology and design parameters of a polit chamber blasting of underground drainage system in Xiaowan power station are introduced.
介紹了小灣電站右岸地下排水系統(tǒng)的小洞室開挖爆破技術(shù)和設(shè)計蓡數(shù)。